ketchtjm



STATES PATENT GEIQ.

A. C. KETOHUM, OF NEW YORK, N. Y., ASSIGNOR TO EDWARD B. OLGOTT.

MACHINE FOR CLEANING KNIVES.

Specification of Letters Patent No. 14,788, dated April 29, 1856.

To all whom t may concern:

Be it known that I, A. C. KETCHUM, of the city, county, and State of New York, have invented a new and Improved Apparatus or Device for Cleaning Knives; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l, is a longitudinal vertical section of my improvement (fr) Fig. 3, showing the plane of section. Fig. 2, is a transverse vertical section of the same, (y) Fig. 3, showing the plane of section. Fig. 3, is plan or top view of the bed of the same.

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists in subjecting t-he blades of the knives to the requisite friction by means of a reciprocating board having leather strips or strips of other suitable material attached to its under surface and projecting downward therefrom, so that as the board is moved back and forth over the knife blades the strips with the aid of some suitable attrition powder will clean and polish the same.

To enable others skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A, represents a bed piece constructed of wood or other proper material. At one side of the bed piece there are attached longitudinally two ledges or projections (a) (a) a space being allowed between them, and recesses are made transversely in the strips to receive the handles of the knives B.

To one end of the ledges or projections (a) (a) there is attached by a hinge (c) a bar C, having a strip of india rubber (cl) attached to its under side. This strip of india rubber when the bar C, is secured down upon the ledges or projections (a) (a) presses upon the handles of the knives B, and holds them firmly in place.

D, is a cleat or projection attached to the side of the bed piece A, opposite to the side to which the ledges or projections (a) (a) are secured.

E, is a board having strips (e) attached to its under surface, said strips being of leather or other proper material and projecting downward from the board, as clearly shown in Fig. l. `The board E, is fitted between the cleat or projection D, and the inner ledge or projection (a) a suitable quantity of attrition powder being placed on the bed piece A. The board E, is moved back and forth by hand over the bed piece and the strips (e) of course pass over the blades of the knives, the strips bending or yielding as they pass over the blades and eifectually cleaning and polishing them. The strips prevent the attrition powder from lodging underneath the blades, and serve to draw it over the blades. At each end of the bed piece there is made a recess (f) to receive the powder and prevent it from being thrown off or from the bed piece.

The bar C,is secured down upon the ledges or projections (a) (a) by means of a hook F, attached to the end of the bar on its upper surface, and a staple G, which passes through a slot in the bar the hook passing through the staple, as shown clearly in Fig. 1.

The above invention is simple and operates well. It is economical to construct and durable as there are no parts liable to get out of order or repair; the strips may be readily replaced by new ones when necessary.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is,

Subjecting the knife blades while secured upon the bed piece to the requisite friction or rubbing, by means of the strips (c) attached to t-he under side of the board E, substantially as herein shown and described.

. A. C. KETCI-IUM.

Witnesses:

WM. TUsoH, JAMES F. BUCKLEY. 

